| Deerfield to Oerlinghausen | 4,250.46 mi (6,840.45 km) |
| Deerfield to Oestrich-Winkel | 4,300.90 mi (6,921.62 km) |
| Deerfield to Offenburg | 4,357.46 mi (7,012.66 km) |
| Deerfield to Oftersheim | 4,346.84 mi (6,995.56 km) |
| Deerfield to Ohrdruf | 4,368.27 mi (7,030.05 km) |
| Deerfield to Ohringen | 4,387.51 mi (7,061.02 km) |
| Deerfield to Olbernhau | 4,467.17 mi (7,189.22 km) |
| Deerfield to Olching | 4,495.07 mi (7,234.12 km) |
| Deerfield to Oldenburg | 4,190.53 mi (6,744.01 km) |
| Deerfield to Oldenburg in Holstein | 4,238.93 mi (6,821.90 km) |
| Deerfield to Olfen | 4,213.73 mi (6,781.34 km) |
| Deerfield to Olpe | 4,256.21 mi (6,849.71 km) |
| Deerfield to Olsberg | 4,267.19 mi (6,867.38 km) |
| Deerfield to Oranienburg | 4,379.06 mi (7,047.41 km) |
| Deerfield to Ortenberg | 4,326.02 mi (6,962.06 km) |
